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Better Errors for non-web apps.
https://github.com/charliesome/better_errors/issues/55
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| require 'better_wrapper' | |
| BetterWrapper.wrap do | |
| raise "Did it work?" | |
| end |
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| require 'better_errors' | |
| require 'binding_of_caller' | |
| module BetterWrapper | |
| def self.wrap(&blk) | |
| yield | |
| rescue => e | |
| require 'rack' | |
| BetterErrors.application_root = File.expand_path("..", $0) | |
| print_error e | |
| silence_output | |
| server.run builder_for(e), :Port => 9292 | |
| end | |
| # This is optional | |
| def self.silence_output | |
| require 'stringio' | |
| $stderr = $stdout = StringIO.new | |
| end | |
| def self.print_error(e) | |
| puts "#{e.class}: #{e.message}" | |
| puts " " + e.backtrace.join("\n ") | |
| puts "" | |
| puts "See http://localhost:9292 for errors. ^C to exit." | |
| end | |
| def self.server | |
| server = Rack::Handler::WEBrick | |
| trap('INT') { server.shutdown } | |
| server | |
| end | |
| def self.builder_for(e) | |
| Rack::Builder.new do | |
| run BetterErrors::Middleware.new(Proc.new { |env| | |
| # Only raise once so not to expire sessions | |
| unless @raised | |
| @raised = true | |
| raise e | |
| end | |
| [301, { "Location" => "/__better_errors" }, ['']] | |
| }) | |
| end | |
| end | |
| end | |
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